This evaporator (part number 297414901) is for freezers.
Evaporator 297414901 is the heat exchanger that cools the freezer.
A service technician should do this repair because it involves recovering and recharging refrigerant in the sealed refrigerant system.
297414901 (or 216997300)
The manufacturer substituted part 216997300 with this new part 297414901
Refrigerators and Freezers